rigid coupling / pump / steel / stainless steel
HercuFlex® RA, RAHS series Lovejoy



  • Type:


  • Product applications:


  • Material:

    steel, stainless steel

  • Installation system:


  • Torque:

    Max.: 154.09 Nm (113.651 ft.lb)

    Min.: 0.19 Nm (0.1401 ft.lb)

  • Rotational speed:

    Max.: 2,164 rpm (13,596.81 rad.min-1)

    Min.: 2.7 rpm (16.96 rad.min-1)


Axial positioning of the pump impeller in vertical pump
Clearance fit bores allows for easy installation and
maintenance for pump and/or motor
Easily adjustable for vertical clearance
Removable spacer for easy maintenance
AISI 1045 Steel (Stainless Steel coupling also available)

The RA and RAHS couplings are offered in two different styles. Type II coupling consists of two rigid hubs, adjusting nut and split ring and split ring for motor bub. Type IV coupling consists of two rigid hubs, adjusting nut, split ring for motor hub and spacer.